Users Guide

cluster-id
Assigns a cluster ID to a BGP cluster with multiple route reectors.
Syntax
cluster-id {number | ip-address}
Parameters
• number—Enter a route reector cluster ID as a 32-bit number, from 1 to 4294967295.
• ip-address—Enter an IP address as the route-reector cluster ID.
Default Router ID
Command Mode ROUTER-BGP
Usage Information If a cluster contains only one route reector, the cluster ID is the route reector’s router ID. For redundancy, a BGP
cluster may contain two or more route reectors. Without a cluster ID, the route reector cannot recognize route
updates from the other route reectors within the cluster. The default format to display the cluster ID is A.B.C.D
format. If you enter the cluster ID as an integer, an integer displays. The no version of this command resets the
value to the default.
Example
OS10(conf-router-bgp-10)# cluster-id 3.3.3.3
Supported Releases 10.3.0E or later
bgp dampening
Enables BGP route-ap dampening and congures the dampening parameters.
Syntax
bgp dampening [half-life | reuse-limit | suppress-limit | max-suppress-time |
route-map-name]
Parameters
• half-life — (Optional) Enter the half-life time (in minutes) after which the penalty decreases. After the
router assigns a penalty of 1024 to a route, the penalty decreases by half after the half-life period expires, from
1 to 45.
• reuse-limit — (Optional) Enter a reuse-limit value, which compares to the apping route’s penalty value. If
the penalty value is less than the reuse value, the apping route advertises again and is not suppressed, from 1
to 20000.
•
suppress-limit — (Optional) Enter a suppress-limit value, which compares to the apping route’s penalty
value. If the penalty value is greater than the suppress value, the apping route is no longer advertised, from 1
to 20000.
• max-suppress-time — (Optional) Enter the maximum number of minutes a route is suppressed, from 1 to
255.
• route-map-name — (Optional) Enter the name of the route-map.
Defaults half-life 15; reuse-limit 750; suppress-limit 2000; max-suppress-time 60
Command Mode ROUTER-BGP-AF
Usage Information To reduce the instability fo the BGP process, setup route ap dampening parameters. After setting up the
dampening parameters, clear information on route dampening and return suppressed routes to the Active state.
You can also view statistics on route apping or change the path selection from the default deterministic mode to
non-deterministic. The no version of this command resets the value to the default.
Example
OS10(conf-router-bgpv4-af)# dampening 2 751 2001 51 map1
Layer 3 223